Socket for incandescent electric lamps.



Patented M21128, 1910.

J.'J. RODNEY. SOCKET FOR ING ANDESGBNT ELECTRIC LAMPS.

' APPLIGAIION FILED JAN. 5. 1910.

contact.

JOHN J. RODNEY, OF NEW YORK, Ff. Y.

amass.

Specification of LetterslEateut Patented Mar. a, twin.

Application filed January 5, 1910. Serial No. 536,546.

.To all whom it may concern: Be it known that I, JOHN J. Roonnr, a

citizen of the United States, residing in the borough of Brooklyn of the city of New York, in the State of New York, have invented certain new and useful Improvements in Sockets for Incandescent Electric Lamps, of which the following is. a specification, reference being had to the accompanying drawing, forming a part hereof.

This invention relates to sockets for small incandescent electric lamps, such as are used for electric candelabra and other ornamental fixtures. As such sockets have been constructed heretofore, the distance betweenconductors of opposite polarity has been so small, by reason of the limitations of space,

that short circuiting of thalamps has been frequent and the construction has been such that through careless handling, or even through the ordinary shocks of. transportation, the parts are often displaced so that connections of opposite polarity are tbrought directly into contact.

llt is. the ob'ect of this inventionlto im-.

prove the construction of such sockets so as to separate connections of opposite polarity by greater distance,notwithstanding thelimitations of space, and to revent such shifting of parts as may be liab e to bring them into lhe invention will be more fully explained hereinafter with reference to the accompanying drawing in which it is illustrated and in which- Figure 1 is a view in longitudinal section of a lamp. socket'which embodies the invention. Fig.2 is a view partly in elevation, as seen from the right hand in Fig. 1, and partly in section on a plane at right angles to that of Fig. 1. Fig. 3 is a view in elevation of the metal sleeve and its. term'inal removed from the insulating shell. Fig. 4 is an end view of the metal sleeve and-its connections, with the insulating shell removed.

The porcelain or other insulating base is formed as usual, comprising a tubular" or sleeve like shell on and an extension I) which may be provided, as usual, with a screw 0 by which the socket is secured in place. Throu h the extension I), 'ust below the sleeve ike shell a, is forms an opening d which communicates with the chamber e of the shell a. In the shell (1 is placed the usual screw threaded, metallic sleeve f, into which the lamp base is screwed, the shell of the lamp base, not shown, forming, as usual,

one terminalof the lamp filament. In the indenting the sleeve above the flange of the block, as at f A metallic screw h, which forms a contact for the central terminal of the lamp, is passed through the insulating block'g and is s'crewedtinto one arm of an L-shaped' metal terminal 0', the other arm' of which stands 1n one end of the opening a? and carries a binding screw is, the connection to the center terminal of the lamp being thus formed. Permanently secured to the sleeve f, as-by s'olderin is a metal terminal strip Z,'which projects ownwardly from the chamber e at the other end of the opening d and carries a binding screw mthrough which connection is made to the outer lamp ten -minal.

As the block 9 projects a substantial distance beyond the end of the metal sleeve 7' and provides a firm support for the terminal strip 2', the latter is held immovably and at v a safe distance from the end ofthesleeve f,

as well as as at a safe distance from the" terminal strip 1 which is held readily in pos1- tion. There'is therefore no point'at which parts of opposite aolarityj are separated by a distance so slig t that it is liable to be bridged accidentally, even if one part or another should be loose, While all parts are so firmly held that they are not liable to loosened, even by careless handling.

I claim as my invention: 1. A socket for incandescent electri lamps, comprising an insulating base, a metallic sleeve placed in the base and having a rigid terminal projected through an opening int-he base at one side thereof, an insulating block secured in and projecting" from the endpf the sleeve, a terminal strip projecting through an opening in the base at the other side thereof, and a contact screw passed through the-insulating block into the last named terminal strip.

2. A socket for incandescent electric lamps, comprising an insulating base, a mefin-amiss;

1 7 tam-s sleeve pififled 1n. the base and havlng a a contact screw passed through the msulat rigid terminal projeeted through an opening 111 the base at one smevthereet, sald sleeve havmg its Rowe! and flanged, a fianged 111'- ing in thea base at. the 'thcf-side thereof, and

ing block into the 121st named terminal strip. 10

This specificnuon signed and witnessed.

this fourth day of 521111 121.1?7, A. D. 191.0.

. JOEE J. ROQNEY. Signed in the presence of AGNES L. RmLLY,

AMBROSE L. QSHEA. 

